Background technology
Relevant refrigerator is at a distance from overlapping and constitute with the outer container that comprises outside side plate and the empty standard width of a room in an old-style house of the interior case that comprises inboard side plate.And, at above-mentioned interval, promptly, between outside side plate and the inboard side plate foaming heat insulation material and vacuum insulation material are set, thereby improve effect of heat insulation.
On the one side of the vacuum insulation material that is adjacent to outside side plate, be formed with a plurality of grooves.In groove, be provided with and be used for radiating tube (pipe) that the heat that refrigerator inside produces is dispelled the heat.
In order to the groove that this radiating tube is set be with in vertical direction, be the upwardly extending mode of upper and lower of refrigerator and being formed on the one side of vacuum insulation material, and the upper end of groove is to be communicated with and to be exposed to clamping the outside side plate that comprises the vacuum insulation material between vacuum insulation material and the inboard side plate and the upper space between the inboard side plate.
In clamping between outside side plate and the inboard side plate of vacuum insulation material and inject the amido formate that for example foams with liquid condition; Make it be filled in clamping and the outside side plate of vacuum insulation material and the whole space between the inboard side plate; And foaming is also solidified, and constitutes the foaming heat insulation material by this.
The prior art document
Patent documentation
Patent documentation 1: No. 4200303 communique of Japan Patent
Patent documentation 2: No. 3607280 communique of Japan Patent
As as above-mentioned, the upper end that is used for being provided with the groove of radiating tube is to form opening at outside side plate and the upper space place between the inboard side plate that vacuum insulation material in clamping, the foaming amido formate gets into from the opening on this top, and foaming in groove, solidifies.The character of foaming amido formate is to solidify cooling back volume can shrink.
The foaming amido formate that gets in the groove is the inboard attached to outside side plate, but if in groove, foam and solidify and make its volume contraction attached to the foaming amido formate of this side plate inboard, outside, then can outside side plate be stretched to the inside during this contraction.Therefore, the part of outside side plate can be recessed to the inside, has the relatively poor problem of products appearance.
To this kind problem, in the refrigerator that patent documentation 1 is put down in writing, disclosed following content: on side panel, attach the amido formate foaming body in groove ends, thereby prevent the infiltration of amido formate, to prevent the distortion of side panel outward appearance to groove.But, only, can't eliminate the gap between groove and the side panel fully by on side panel, attaching the amido formate foaming body, infiltrate in the groove so can't prevent the amido formate of liquid condition fully.
The specific embodiment
Below, with reference to accompanying drawing example of the present invention is described.In institute's drawings attached, identical inscape being enclosed same-sign illustrates.
Fig. 1 is the stereogram of the internal structure after the door dismounting of refrigerator 10,10A, 10B of whole expression first to the 3rd example.As shown in Figure 1, the wall portion of the refrigerator 10 of first to the 3rd example, 10A, 10B is at a distance from overlapping and constitute with the empty standard width of a room in an old-style house of outer container that comprises outside side plate 1 and the interior case that comprises inboard side plate 3.
Fig. 2 is with the place level cut-out of the refrigerator 10 of first to the 3rd example shown in Figure 1,10A, 10B and the profile of the internal cross section structure between expression outside side plate 1 and the inboard side plate 3.In Fig. 2, the inside of U font is the inside of refrigerator 10,10A, 10B, and omits the Qianmen.Between outside side plate 1 and inboard side plate 3, be provided with foaming heat insulation material 5 and vacuum insulation material 7, to improve the thermal insulation of refrigerator 10,10A, 10B.
As shown in Figure 2, in the one side, promptly of the vacuum insulation material 7 that is adjacent to outside side plate 1, near with the face that is adjacent to foaming heat insulation material 5 be on the face of outside side plate 1 of opposition side, be formed with a plurality of grooves 9.In groove 9, be provided with the radiating tube 11 that dispels the heat in order to the heat that the inside of refrigerator 10,10A, 10B is produced.
In order to the groove 9 that radiating tube 11 is set is to be the upwardly extending mode of upper and lower of refrigerator 10,10A, 10B and being formed on the one side of vacuum insulation material 7 in vertical direction.The upper end of groove 9 is communicated with and is exposed to clamping and the outside side plate 1 that comprises the vacuum insulation material 7 between vacuum insulation material 7 and the inboard side plate 3 and the upper space between the inboard side plate 3.
In clamping between outside side plate 1 and the inboard side plate 3 of vacuum insulation material 7 and inject the amido formate that for example foams with liquid condition; The outside side plate 1 of vacuum insulation material 7 in the filling clamping and the institute between the inboard side plate 3 has living space; And foaming is also solidified, and constitutes foaming heat insulation material 5 by this.The character of foaming amido formate is to solidify cooling back volume can shrink.
In in first to the 3rd example, be the foaming amido formate that the foaming amido formate of liquid condition only is recited as foaming amido formate or liquid condition with the material before the curing of foaming heat insulation material 5.In in first to the 3rd example; Be to use the example of foaming amido formate as foaming heat insulation material 5; But the present invention is not limited thereto, and also can using arbitrarily, foamed plastic is heat insulation material, for example polystyrene resin (so-called foamed styrene), phenol resin etc.
[first example]
Fig. 3 is the profile of internal structure of wall portion of the refrigerator 10 of expression first example.In detail, Fig. 3 amplifies expression with the part of groove 9 set in the wall portion that comprises refrigerator 10 shown in Figure 2, and representes to have used in this part the profile of the state of first example.
Among Fig. 3, the wall portion of the refrigerator 10 of first example be as as above-mentioned, the outside side plate 1 that will constitute outer container with constitute in the inboard side plate 3 empty standard widths of a room in an old-style house of case at a distance from overlapping and constitute.Between outside side plate 1 and inboard side plate 3, be provided with foaming heat insulation material 5 and vacuum insulation material 7.In the one side of vacuum insulation material 7, promptly, near and face in abutting connection with foaming heat insulation material 5 be on the face of a side of outside side plate 1 of opposition side, above-below direction ground formation fluted 9.Be provided with radiating tube 11 in the groove 9.
In order to the upper end of groove 9 that radiating tube 11 is set is to form opening at outside side plate 1 and the upper space place between the inboard side plate 3 that vacuum insulation material 7 in clamping, and the foaming amido formate gets into from the opening on this top, foaming and curing groove 9 in.
In the refrigerator 10 of first example, between outside side plate 1 and vacuum insulation material 7, be provided with thin slice 21, the recessed distortion of contraction that outside side plate 1 can not produced because of the curing of the foaming amido formate of following the liquid condition of infiltrating groove 9.
As as following, thin slice 21 is roughly whole surface and the adjacency that spread all over outside side plate 1, and is located between outside side plate 1 and the vacuum insulation material 7.By this, the wall portion of the refrigerator 10 of first example is made up of outside side plate 1, thin slice 21, the vacuum insulation material 7 that in groove 9, is provided with radiating tube 11, foaming heat insulation material 5 and inboard side plate 3.
For foaming heat insulation material 5 is not infiltrated between thin slice 21 and the outside side plate 1, thin slice 21 periphery at least is bonding or be attached at outside side plate 1.Perhaps, the periphery of thin slice 21 becomes like foaming heat insulation material 5 and can not infiltrate the formation between thin slice 21 and the outside side plate 1.Except that this inside part periphery for not bonding or be attached at the outside side plate 1 but from the outside side plate 1 floating and separable state.When foaming heat insulation material 5 infiltrates in the groove 9; Outside side plate 1 might stretch because of the contraction of the foaming heat insulation material 5 that infiltrated to the inside, thereby it is recessed to cause outside side plate 1 to take place, but owing to thin slice 21 is to be in the state that can separate with outside side plate 1; Even if foaming heat insulation material 5 shrinks; Also only thin slice 21 stretches, and can not have influence on outside side plate 1, thereby can prevent the distortion of outside side plate 1.Thin slice 21 is that (polyethylene terephthalate, the material in the group that PET) forms constitutes, and is level and smooth and have heat reflectivity and just can by the metal as the aluminium foil, plastic cement, aluminium-vapour deposition plastic cement and aluminium-vapour deposition PET by for example being selected from.
Fig. 4 and Fig. 5 be whole expression first example shown in Figure 3 application the only stereogram and the exploded perspective view thereof of one side of wall portion of the remainder after in wall portion of certain one side of refrigerator 10 of thin slice 21 inboard side plate 3 being removed with foaming heat insulation material 5.Promptly, among Fig. 4 and Fig. 5; As shown in Figure 3; In the wall portion that constitutes by outside side plate 1, thin slice 21, the vacuum insulation material 7 that in groove 9, is provided with radiating tube 11, foaming heat insulation material 5, inboard side plate 3, only diagram except that inboard side plate 3 and the outside side plate 1 the foaming heat insulation material 5, thin slice 21, in groove 9, be provided with the vacuum insulation material 7 of radiating tube 11.In Fig. 4 and Fig. 5, the subtend of outside side plate 1, promptly, the rear that takes over is the outside of refrigerator 10, the side nearby of vacuum insulation material 7, promptly, the place ahead of taking back is the inboard of refrigerator 10.
Like Fig. 4 and shown in Figure 5, in outside side plate 1 and groove 9, be provided with between the vacuum insulation material 7 of radiating tube 11, thin slice 21 spread all over outside side plate 1 roughly whole surface and in abutting connection with being provided with.For foaming heat insulation material 5 is not infiltrated between thin slice 21 and the outside side plate 1, thin slice 21 as above-mentioned as periphery is bonding or be attached at outside side plate 1 at least.Except that this inside part periphery become not bonding or be attached at the outside side plate 1 but from the outside side plate 1 floating and separable state.When foaming heat insulation material 5 infiltrates in the groove 9; Outside side plate 1 might stretch because of the contraction of the foaming heat insulation material 5 that infiltrated to the inside, and it is recessed to make that outside side plate 1 takes place, but owing to thin slice 21 is in the state that can separate with outside side plate 1; So even if foaming heat insulation material 5 shrinks; Also only thin slice 21 is stretched, and can not have influence on outside side plate 1, thereby can prevent the distortion of outside side plate 1.
Like Fig. 4 and shown in Figure 5; Radiating tube 11 be with in vertical direction, promptly; The mode that the above-below direction of refrigerator 10 extends is being provided with, so plant in order to groove 9 that radiating tube 11 is set also on the one side of vacuum insulation material 7, forming in vertical direction, promptly, the above-below direction of refrigerator 10 extends.The upper and lower side of groove 9 is to form opening in the place, space that the top and the bottom between the inboard side plate 3 in abridged among outside side plate 1 and Fig. 4,5 of vacuum insulation material 7 in clamping.
The outside side plate 1 of vacuum insulation material 7 and the gap location between the inboard side plate 3 in clamping, the aperture that the suitable position of side plate 1 is opened from the outside injects the foaming amido formate with liquid condition, makes it spread all over whole gap and foaming.By this, the foaming amido formate with as Fig. 2 or mode shown in Figure 3 be filled in clamping and the outside side plate 1 of vacuum insulation material 7 and the whole space between the inboard side plate 3, and foam and curing, by this, like Fig. 2 or formation foaming heat insulation material 5 shown in Figure 3.
During this foaming; Because the upper and lower side of the groove 9 that forms on the vacuum insulation material 7 is an open state; So the foaming amido formate of liquid condition such as above-mentioned as when injecting between outside side plate 1 that clamping vacuum insulation material 7 and the inboard side plate 3; Also the upper and lower side from groove 9 gets in the groove 9 a little, and foaming in groove 9.The foaming amido formate that gets into the liquid condition in the groove 9 thus is attached to the inboard of the thin slice 21 that the opening portion of the groove 9 of the inboard of side plate 1 towards the outside is stopped up.
So; The foaming amido formate that gets in the groove 9 and be attached to the inboard liquid condition of thin slice 21 foams in groove 9 and solidifies cooling; Its volume contraction, but during this contraction only thin slice 21 stretch to the inside and be out of shape, be in from thin slice 21 floating and separable state, promptly; Be in not bonding or be not attached at the outside side plate 1 of the state of thin slice 21, can not stretch to the inside and also can not be out of shape.
Therefore; In the refrigerator 10 of first example; Do not have the outside recessed to the inside distortion of side plate 1 and make the situation of degraded appearance, even and if as above-mentioned as, thin slice 21 is set between outside side plate 1 and vacuum insulation material 7, also can not diminish the radiating effect of radiating tube 11.In addition, above-mentioned explanation is that the arbitrary one-sided structure in the left and right sides is described, but the side plate of the left and right sides also can be same structure.And the back side of refrigerator 10 also can be made as same structure.
[the 2nd example]
The structure of the wall portion of the remainder after Fig. 6 representes in the wall portion of one side of refrigerator 10A of the 2nd example inboard side plate 3 removed with foaming heat insulation material 5.
In the wall portion of the refrigerator 10 of first example of Fig. 3~shown in Figure 5; Thin slice 21 be spread all over the outside side plate 1 roughly whole surface and be provided with; With respect to the wall portion of the refrigerator 10A of this 2nd example and there is following difference: the top of the outside side plate 1 that exposes in the upper and lower side of groove 9, comprise with covering groove 9 upper ends groove 9 top mode and be provided with flakelet 23.This allocation position and Fig. 3~first example shown in Figure 5 likewise is between outside side plate 1 and the vacuum insulation material 7.
This flakelet 23 does not likewise infiltrate between thin slice 23 and the outside side plate 1 for making foaming heat insulation material 5 with Fig. 3~first example shown in Figure 5, at least periphery bonding or be attached at outside side plate 1.Except that this inside part periphery is in not bonding or is not attached at outside side plate 1 but be in the side plate 1 floating and separable state from the outside.When foaming heat insulation material 5 infiltrates in the groove 9; Outside side plate 1 might stretch because of the contraction of the foaming heat insulation material 5 that infiltrated to the inside, and it is recessed to make that outside side plate 1 produces, but owing to thin slice 21 is in and outside side plate 1 separable state; Even if shrink so foaming heat insulation material 5 produces; Also only thin slice 21 stretches, and can not have influence on outside side plate 1, thereby can prevent the distortion of outside side plate 1.
So; The top of side plate 1 in the outside; Be equipped with obstruction radiating tube 11 groove 9 tops the opening portion mode and flakelet 23 is set between outside side plate 1 and vacuum insulation material 7; Can prevent the distortion on the top of easy especially noticeable outside side plate 1 by this, and compare, can make at low cost with Fig. 3~first example shown in Figure 5.
In the 2nd example, be with flakelet 23 comprise with covering groove 9 upper ends groove 9 top mode and be arranged on the top of outside side plate 1, but in fact because also opening of the lower end of groove 9, thus also can be on this lower end bonding or attaching flakelet 23.Wherein, The foaming amido formate of the liquid condition of infiltrating from this lower end is extremely a small amount of; Influence to the distortion of the wall portion of refrigerator 10A is little, even if suppose to take place to infiltrate and therefore cause the sidewall of refrigerator 10A bottom to be out of shape, compare with the wall portion on refrigerator 10A top also be not easy noticeable.Though so; But except can with flakelet 23 comprise with covering groove 9 upper ends groove 9 top mode and be arranged at the outside side plate 1 top; Can also cover the groove 9 that comprises groove 9 lower ends the bottom mode and be arranged at the outside side plate 1 the bottom; Can also this mode in the bonding or attaching flakelet 23 of two sides up and down, nonetheless with illustrated first example of Fig. 3 by contrast, also can realize economization.
[the 3rd example]
Fig. 7 is the structure of the wall portion of the remainder after in the wall portion of one side of refrigerator 10B of expression the 3rd example inboard side plate 3 being removed with foaming heat insulation material 5.
The wall portion of the refrigerator 10B of the 3rd example shown in Figure 7; Be that the wall portion of the refrigerator 10A of the 2nd example as shown in Figure 6 only covers as the upper end of groove 9, spreads all over thin slice 23 from the top of vacuum insulation material 7 and attach adhesive tape 25, stop up the open upper end of groove 9 by this.By this, the amido formate that can prevent to foam gets into the situation in the groove 9 from the upper end of groove 9.
According to the 3rd example, because the foaming amido formate can not get in the groove 9, so need only the inboard that is not attached to outside side plate 1, the recessed or distortion of outside side plate 1 can not take place just because of curing, the contraction of foaming amido formate.Peel off etc. because of the part of the adhesive tape 25 that is attached at groove 9 upper ends even if suppose; Make the foaming amido formate of liquid condition in this part gets into groove 9; Perhaps the gap gets into from childhood; Because there is the flakelet 23 that is arranged between outside side plate 1 and the vacuum insulation material 7 in the top of outside side plate 1, with the 2nd example of above-mentioned Fig. 6 likewise outside side plate 1 also can recessedly not be out of shape.
The attaching of the adhesive tape 25 of the 3rd example of Fig. 7 not only only is located at the situation on side plate 1 top, the outside with flakelet 23 as the 2nd example as shown in Figure 6, and also attaches the situation of thin slice 21 applicable to the roughly whole surface that as first example of Fig. 3~Fig. 5, spreads all over outside side plate 1.
Select adhesive tape 25 in the group that can form by the for example butyl rubber belt that utilizes flexible material to form, butyl rubber band, polyurethane adhesive tape, paper self-adhesive tape and adhesive tape.
In above-mentioned each example; Be that the wall portion that is applied to refrigerator 10,10A, 10B side with the present invention is that example describes; But the present invention is not limited thereto; Also can be applicable to the wall portion of refrigerator 10,10A, 10B top side or the desired areas such as wall portion of rear side, the wall portion of this kind courtyard side or the wall portion of rear side etc. also as as above-mentioned, constitute by outside side plate and inboard side plate clamping vacuum insulation material, foaming heat insulation material.
According to example discussed above; Be provided with thin slice 21,23 in being formed with, can be attached to outside side plate 1 but be attached on the thin slice 21,23 so get into the foaming amido formate of the liquid condition in the groove 9 in order to the face of the vacuum insulation material 7 of the groove 9 that sets radiating tube 11 and in abutting connection with between the outside side plate 1 of this face.And thin slice the 21, the 23rd is with and separable state floating with respect to outside side plate 1 and be provided with.Therefore; Even if being attached to foaming amido formate on this thin slice 21,23 foams in groove 9 and solidifies the cooling after-contraction; Also only thin slice 21,23 is to groove 9 in-draws and recessed distortion, and outside side plate 1 can not receive the influence of the distortion of thin slice 21,23, so can recessed or distortion.Thus, the outward appearance of refrigerator 10,10A, 10B can variation.